Mutual Exclusion Problem Occurs

By BYJU'S Exam Prep

Updated on: November 9th, 2023

Mutual Exclusion Problem takes place among processes that share resources. It is a program that prevents simultaneous access to shared resources. The concept of mutual exclusion is used in concurrent programming. Mutual exclusion is responsible for reducing the latency and busy waits using queuing and context switches. It happens when two processes share the same resource but are unable to use it at the same time.

Problems of Mutual Exclusion

At a time, only one thread owns the mutex. Hence, when a program starts, a mutex with a unique name is created. Mutex acts as a lock when two threads work on the same data at the same time. It is the most basic synchronization tool.

A thread gains a mutex if it is available; otherwise, it is set to sleep condition. To enforce the mutex at the kernel level, the best way is to disable interrupts for the smallest number of instructions.

  • It prevents the corruption of shared data structures.
  • The mechanism of busy-wait imposes the mutex in the software areas.
  • This is equipped with various algorithms such as Peterson’s algorithm, Dekker’s algorithm, Lamport’s bakery algorithm, Szymanski’s algorithm, and the black-white bakery algorithm.


Mutual Exclusion Problem Occurs

Mutual exclusion problem occurs when there is a problem with resource sharing. It is a problem during which more than one processes share the same resources but cannot access or use them simultaneously. The problem of mutual exclusion is important to solve, or else it may result in the corruption of data. However, the problem of mutual exclusion can be solved using a tool like a semaphore.

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